Gaming PC

New X-NAND Flash Tech Doubles Flash Write Speeds

The company behind X-NAND flash memory claims it has doubled the speed of storage on its second-generation chips. blocks and files (opens in new tab), by enabling data writes in parallel. In this way, X-NAND can deliver SLC-level performance from QLC flash. QLC flash is cheaper and has higher capacity.

Neo Semiconductor’s X-NAND architecture, applicable to all generations of flash memory, divides each plane of the 3D matrix into 4 to 16 subplanes, uses page buffers to optimize speed, and divides each subplane into can be accessed in parallel. 2nd Generation X-NAND (opens in new tab) (PDF) takes this idea and compresses and uses one plane to write to another plane, whereas previously it used three planes to write to a fourth plane. For a full article on how this technology works, see Features here.

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